基于本体和局部共现的查询扩展方法 (Query Expansion Method Based on Ontology and Local Co-occurrence).
Xuyang WangXingxing WeiPublished in: 计算机科学 (2017)
Keyphrases
- co occurrence
- query terms
- concept hierarchy
- semantic relationships
- wordnet
- query processing
- term co occurrence
- semantic similarity
- semantic space
- semantic relations
- latent semantic analysis
- query expansion
- named entities
- topic models
- relevance feedback
- data sources
- semantically related
- probabilistic latent semantic analysis
- occurrence frequency
- visual words
- domain specific
- domain knowledge
- vector space
- document retrieval
- user queries
- semantic information
- text corpora
- expert systems
- keywords
- knowledge base
- artificial intelligence
- machine learning